2. Signaling Pathways
  3. Cell Cycle/DNA Damage
    PI3K/Akt/mTOR
  4. DNA-PK

DNA-PK (DNA依赖蛋白激酶)

DNA-dependent protein kinase

DNA-PK (DNA-dependent protein kinase) is a nuclear serine/threonine protein kinase composed of a large catalytic subunit (DNA-PKcs) and a heterodimeric DNA-targeting subunit Ku. DNA-PK is a major component of the nonhomologous end-joining (NHEJ) pathway of DNA double-strand breaks repair. DNA-PK specifically requires association with DNA for its kinase activity, plays important roles in the regulation of different DNA transactions, including transcription, replication and DNA repair, as well as in the maintenance of telomeres.

The assembly of DNA-PK at DSB ends serves as a platform to recruit Artemis, DNA ligase IV and other NHEJ factors that are involved in end-processing and ligation. Within the DNA-PK complex, Ku proteins confer high affinity to DSB ends, and function as early sensors. The subsequent recruitment of DNA-PKcs to DSBs via the Ku proteins triggers the activation of DNA-PKcs, a member of the phosphatidylinositol 3-kinase-related kinase (PIKK) family. Upon activation, DNA-PKcs phosphorylates a number of substrates, including H2AX, XRCC4, Artemis and most importantly, DNA-PKcs itself. Autophosphorylation of DNA-PKcs occurs at numerous Ser/Thr residues throughout the kinase, and has been shown to mediate NHEJ.

Cat. No. Product Name Effect Purity Chemical Structure
  • HY-144038
    DNA-PK-IN-5 Inhibitor
    DNA-PK-IN-5 是一种有效的 DNA-PK 抑制剂。DNA-PK-IN-5 抑制 DNA-PKcs 活性，从而大大降低肿瘤 DNA 修复并诱导细胞进入凋亡程序。DNA-PK-IN-5 增强肿瘤组织对放疗的敏感性，克服耐药问题，增强对多种实体瘤和血液肿瘤的抑制作用 (摘自专利 WO2021204111A1，化合物 2)[ 1]。
    DNA-PK-IN-5
  • HY-144037
    DNA-PK-IN-4 Inhibitor
    DNA-PK-IN-4 是一种有效的 DNA-PK 抑制剂。DNA-PK-IN-4 是一种咪唑啉酮衍生物化合物。DNA-PK-IN-4 抑制 DNA-PKcs 活性，从而大大降低肿瘤 DNA 修复并诱导细胞进入凋亡程序。DNA-PK-IN-4 具有研究癌症疾病的潜力 (摘自专利 WO2021209055A1，化合物 27)。
    DNA-PK-IN-4
  • HY-158166
    DNA-PK-IN-13 Inhibitor
    DNA-PK-IN-13 (Compound SK10) 是 DNA-PK 抑制剂，表现出极强的抑制活性 (IC50= 0.11 nM)。DNA-PK-IN-13 通过降低 γH2A.X 的表达水平和增强肿瘤细胞对化疗药物的敏感性，调节肿瘤细胞的增殖。DNA-PK-IN-13 具适用于肿瘤学研究。
    DNA-PK-IN-13
  • HY-107834
    PIK-75 Inhibitor 98.72%
    PIK-75 是一种可逆的 DNA-PK 和 p110α-选择性的抑制剂，抑制 DNA-PK，p110α 和 p110γ，IC50 分别为 2，5.8 和 76 nM。PIK-75 抑制 p110α 效果比抑制 p110β (IC50=1.3 μM) 高 200 多倍。PIK-75 诱导凋亡 (apoptosis)。
    PIK-75
  • HY-100707
    IC 86621 Inhibitor 99.06%
    IC 86621 是一种有效的 DNA 依赖蛋白激酶 (DNA-PK) 抑制剂，其 IC50 为 120 nM。IC 86621 还可作为选择性和可逆的 ATP 竞争性抑制剂。IC 86621 可抑制 DNA-PK 介导的细胞 DNA 双链断裂 (DSB) 修复 (EC50=68 µM)。IC 86621 可增加 DSB 诱导的抗肿瘤活性，但没有细胞毒性作用。IC 86621 可防止类风湿关节炎 (RA) T 细胞凋亡 (apoptosis)。
    IC 86621
  • HY-160096
    DNA-PK-IN-11 Inhibitor 99.10%
    DNA-PK-IN-11 是一种 DNA-PK 抑制剂，IC50 <0.1 μM (DE102010035744A1；化合物 36)。
    DNA-PK-IN-11
  • HY-15268
    PP487 Inhibitor
    PP487 是一种酪氨酸激酶/PI(3)Ks 双重抑制剂，其对 DNA-PK、mTOR、Hck、Src、EGFR、EphB4 和 PDGFR 的 IC50 值分别为 0.017 μM、0.072 μM、0.004 μM、0.01 μM、0.55 μM、0.22 μM 和 ＜ 0.01 μM。PP487 可以用于癌症的研究。
    PP487
  • HY-144036
    DNA-PK-IN-3 Inhibitor
    DNA-PK-IN-3 是一种有效的 DNA-PK 抑制剂。DNA-PK-IN-3 协同增强放化疗效果，有效抑制肿瘤生长。DNA-PK-IN-3 还有效减少对正常细胞的损伤，减少副作用。DNA-PK-IN-3 具有研究癌症疾病的潜力 (信息摘自专利 WO2021213460A1，化合物 4)。
    DNA-PK-IN-3
  • HY-142943
    DNA-PK-IN-1 Inhibitor
    DNA-PK-IN-1 是一种有效的 DNA-PK 抑制剂。DNA 依赖性蛋白激酶 (DNA-PK) 是由 Ku70/Ku80 异二聚体和 DNA 依赖性蛋白激酶催化亚基 (DNA-PKcs) 组成的 DNA-PK 酶复合物。DNA-PK-IN-1 具有研究癌症疾病的潜力 (摘自专利 WO2021136463A1，化合物 1)。
    DNA-PK-IN-1
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